document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=56024>Question 56024</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given the equation f(x)=25x decide whether each function in linear. If it is, give its slope and state whether it represents direct variation.\r<BR>\n" );
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document.write( "I wrote that it is a linear equation and the slope is 25/1. My questions are what exactly is direct variation and I'm I correct in saying that it is linear? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #37989 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=37989\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given the equation f(x)=25x decide whether each function in linear. If it is, give its slope and state whether it represents direct variation.\r<BR>\n" );
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document.write( "I wrote that it is a linear equation and the slope is 25/1. My questions are what exactly is direct variation and I'm I correct in saying that it is linear?<BR>\n" );
document.write( "You are correct in saying that it is a linear equation.<BR>\n" );
document.write( "Direct variation are in the form of a constant times a variable.<BR>\n" );
document.write( "In this case f(x) varies directly with x.  In algebreze f(x)=kx, where k is the constant of variation.  In this case k is the slope, 25.  It means that for every x, f(x) increases by a factor of 25.<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
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